July was the hottest month on record in the United States, with three heat domes — slow-moving, high-pressure systems that trap heat and humidity in place — afflicting large swaths of the country. The most recent of these contributed to an 18-day extreme heat warning in Phoenix, Arizona, the state’s second-longest stretch on record. Yet, in the face of these extreme heat events, representatives in Congress last month advanced a bill that would block the nation’s workplace regulator from finalizing a rule to protect workers from heat stress. What gives?

H.R. 6213 was introduced last year by Representative Mark Messmer from Indiana, who celebrated the House Committee on Education and the Workforce’s recent vote in support of the legislation. The bill seeks to undermine a proposed federal rule that has been languishing under the Occupational Safety and Health Administration, or OSHA. The rule — which would ensure workers have access to rest, shade, and water on the job — was drafted under the Biden administration. Messmer has described the proposed rule as “unnecessary,” saying it would present a burden to employers.

In response to a request for comment, the communications director for the House Committee on Education and the Workforce, Audra McGeorge, did not share a timeline for a full vote on the bill. “The Committee doesn’t control the Floor schedule,” she said. But labor advocates are nevertheless alarmed by the progress H.R. 6213 has made, especially at a time of record-breaking summer temperatures.